Results 31 to 40 of about 72,846 (139)
Gaussian Multiple Access Channels with One-Bit Quantizer at the Receiver †,‡
Entropy, 2018 The capacity region of a two-transmitter Gaussian multiple access channel (MAC) under average input power constraints is studied, when the receiver employs a zero-threshold one-bit analogue-to-digital converter (ADC).
Borzoo Rassouli +2 more
doaj +1 more source
A Mixed-ADC Receiver Architecture for Massive MIMO Systems
, 2015 Motivated by the demand for energy-efficient communication solutions in the next generation cellular network, a mixed-ADC receiver architecture for massive multiple input multiple output (MIMO) systems is proposed, which differs from previous works in ...
Liang, Ning, Zhang, Wenyi
core +1 more source
The dual-slope conversion improvement [PDF]
Serbian Journal of Electrical Engineering, 2014 The dual-slope ADC (DSADC) is a type of analog-to-digital conversion with low input bandwidths. It is pretty slow, but its ability to reject high-frequency noise and fixed low frequencies such as 50 Hz or 60 Hz makes it useful in noisy ...
Radetić Radojle +2 more
doaj +1 more source
Mixed-ADC Massive MIMO Detectors: Performance Analysis and Design Optimization
, 2015 Using a very low-resolution analog-to-digital convertor (ADC) unit at each antenna can remarkably reduce the hardware cost and power consumption of a massive multiple-input multiple-output (MIMO) system.
Jiang, Tao +3 more
core +1 more source
, 2015 The wide bandwidth and large number of antennas used in millimeter wave systems put a heavy burden on the power consumption at the receiver. In this paper, using an additive quantization noise model, the effect of analog-digital conversion (ADC ...
Erkip, Elza +2 more
core +1 more source
Vector Modulator-Based Analog Beamforming Using the Least Euclidean Distance Criterion
IEEE Access, 2021 In traditional multiple-input multiple-output (MIMO) receivers, radio frequency (RF) front-ends are exposed to interference as no analog spatial filtering is employed before the digital beamforming stage.
Masoud Abbasi Alaei +2 more
doaj +1 more source
One-Bit Massive MIMO: Channel Estimation and High-Order Modulations
, 2015 We investigate the information-theoretic throughout achievable on a fading communication link when the receiver is equipped with one-bit analog-to-digital converters (ADCs).
Coldrey, Mikael +4 more
core +1 more source
Sensors, 2023 In wireless communication, multiple signals are utilized to receive and send information in the form of signals simultaneously. These signals consume little power and are usually inexpensive, with a high data rate during data transmission. An Multi Input
B. M. R. Manasa +5 more
doaj +1 more source
Energy efficiency joint optimization algorithm for low-precision ADC massive MIMO systems
Dianxin kexue, 2020 An uplink energy efficiency optimization algorithm based on alternating optimization algorithm was proposed for large-scale multiple-input multiple-output (MIMO) systems with low-precision analog to digital converters (ADC).That is,based on the maximum ...
Haiyan CAO +4 more
doaj +2 more sources
Novel MRI-Based CAD System for Early Detection of Thyroid Cancer Using Multi-Input CNN
Sensors, 2021 Early detection of thyroid nodules can greatly contribute to the prediction of cancer burdening and the steering of personalized management. We propose a novel multimodal MRI-based computer-aided diagnosis (CAD) system that differentiates malignant from ...
Ahmed Naglah +6 more
doaj +1 more source